WO2016063996A1 - Imprimante tridimensionnelle - Google Patents

Imprimante tridimensionnelle Download PDF

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Publication number
WO2016063996A1
WO2016063996A1 PCT/KR2014/009821 KR2014009821W WO2016063996A1 WO 2016063996 A1 WO2016063996 A1 WO 2016063996A1 KR 2014009821 W KR2014009821 W KR 2014009821W WO 2016063996 A1 WO2016063996 A1 WO 2016063996A1
Authority
WO
WIPO (PCT)
Prior art keywords
resin
build plate
printer
unit
storage unit
Prior art date
Application number
PCT/KR2014/009821
Other languages
English (en)
Korean (ko)
Inventor
최홍관
최이관
Original Assignee
(주)아이투스 인터내셔날
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)아이투스 인터내셔날 filed Critical (주)아이투스 인터내셔날
Priority to PCT/KR2014/009821 priority Critical patent/WO2016063996A1/fr
Publication of WO2016063996A1 publication Critical patent/WO2016063996A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00

Definitions

  • the present invention relates to a three-dimensional printer.
  • a printer means a device that prints characters, drawings, and the like on a print object.
  • Printer devices that connect to a computer and print on the ground are widely used for business and home use.
  • a three-dimensional printer is an additive manufacturing machine that produces a three-dimensional object by stacking and continuously spraying materials on a plate, and refers to a device that manufactures a signal such as a computer or a sensor as a three-dimensional object, and is easier to use than other additional manufacturing technologies. It is also highly scalable and can be expanded from manufacturing to medical equipment companies.
  • 3D technology can increase the cost efficiency, so it is very useful in the fast-changing manufacturing industry, and it is also called as a device to announce the birth of the third industrial revolution.
  • 3D printing technology is commercially available, and such a three-dimensional printer is described in Korean Laid-Open Patent Publication No. 10-2013-0038101 (published on April 17, 2013).
  • the prior art relates to a three-dimensional printer having a UV light source, a projector, a material stacking composition, and a control unit.
  • the three-dimensional printer has an improved resolution by selectively transmitting a single screen pattern by providing a plurality of projectors that selectively transmit the UV light source. And the like.
  • An object of the present invention is to provide a technique for curing a photocurable resin for forming a molded object through a laser light source.
  • Still another object of the present invention is to provide a technique for printing a molded object through efficient photocuring by maintaining a constant thickness of the photocurable resin.
  • Another object of the present invention is to provide a technique for implementing the recovery and circulation of the photocurable resin.
  • the object is, according to the present invention, a resin storage unit for storing a photocurable resin; A build plate to which the photocurable resin supplied from the resin storage unit is coated and which is movable up and down, to support the cured resin to be stacked; A light providing means disposed on an upper part of the build plate, and configured to irradiate light according to a molding pattern on the build plate; And a control unit for controlling the operation of the resin storage unit, the build plate and the light providing means; It includes, the light providing means can be achieved by a three-dimensional printer provided with a projector having a laser light source.
  • the light providing means a laser diode for generating a laser light source; A lens for enlarging or reducing light generated by the laser diode; A homogenizer for homogenizing the light magnified or reduced through the lens; A pattern forming unit configured to image and transmit the homogenized light through the homogenizer in the form of a molding pattern, and be provided as a digital micromirror device (DMD) device or an LCD; And a projection lens that irradiates the build plate with a light source imaged by the pattern forming unit.
  • DMD digital micromirror device
  • At least one auxiliary lens may be installed between the lens and the homogenizer or between the homogenizer and the pattern forming unit to reduce or enlarge the light source.
  • the three-dimensional printer is provided so as to move left and right on the build plate, the coating unit for applying a photocurable resin supplied from the resin storage unit to the build plate to a predetermined thickness on the front of the build plate further It may include.
  • the coating unit may include a ball bush coupled to the top, bottom on the basis of the plane, the ball bush may be provided to move left and right on the build plate along the guide formed on the top and bottom of the build plate. .
  • the coating unit may be provided in the form of a bar or a wiper.
  • a lower portion of the resin reservoir may be provided with a magnetic heating stirrer for temperature control and stirring of the photocurable resin contained in the resin reservoir.
  • the lower part of the build plate is further provided with a recovery unit for recovering the uncured resin on the build plate.
  • the recovery unit may include a body portion accommodating the recovered photocurable resin and having a bellows shape which is displaced in correspondence with the up and down movement of the build plate; And a recovery tube unit installed at the lower portion of the body part to move the recovered resin into the body part, wherein the recovery tube part is connected to the resin storage part and may be provided to re-supply the recovered photocurable resin to the resin storage part.
  • one or more filters may be installed between the recovery pipe part and the resin storage part to filter out the partially cured photocurable resin.
  • At least one resin recovery hole through which the photocurable resin is discharged may be formed in the build plate.
  • control unit is formed separately from the sculpture to be printed through the curing of the photocurable resin, so as to control the light-providing means to print the molding assistant to be stacked to correspond to the stacking height of the sculpture at the outer edge portion of the sculpture. To be prepared.
  • the resin recovery hole may be formed in the portion between the molding assistant and the molding on the build plate.
  • efficient and rapid sculpture printing can be realized by curing a photocurable resin forming a sculpture through a laser light source.
  • FIG. 1 is a schematic view showing the configuration of a three-dimensional printer according to the present invention
  • Figure 2 is a schematic diagram showing the detailed configuration of the light providing means of the three-dimensional printer according to the present invention
  • FIG. 3 is a plan view showing the movement of the coating unit of the three-dimensional printer according to the present invention.
  • Figure 4 is a schematic diagram of the initial printing process of the sculpture and the molding assistant of the three-dimensional printer according to the present invention
  • Figure 5 is a schematic diagram of the mid-printing process of the sculpture and the molding aid of the three-dimensional printer according to the present invention
  • Figure 6 is a schematic diagram of the final printing process of the sculpture and the molding assistant of the three-dimensional printer according to the present invention.
  • FIG. 1 is a schematic view showing the configuration of a three-dimensional printer according to the present invention
  • Figure 2 is a schematic view showing a detailed configuration of the light providing means of the three-dimensional printer according to the present invention
  • Figure 5 is a schematic diagram of the mid-printing process of the sculpture and molding aid of the three-dimensional printer according to the present invention
  • 6 is a schematic diagram of the final printing process of the sculpture and the molding assistant of the three-dimensional printer according to the present invention.
  • a photocurable resin (R, preferably a liquid resin or a powder resin may be adopted, hereinafter referred to collectively as a 'resin') is stored therein.
  • Resin storage unit 10 A build plate 20 to which the resin R supplied from the resin storage unit 10 is coated, which is movable up and down by driving the motor M, and which supports the cured resin to be stacked;
  • a light providing means 30 disposed above the build plate 20 and irradiating light on the build plate 20 according to a molding pattern;
  • a control unit (not shown) for controlling the overall operation of the resin storage unit 10, the build plate 20, the light providing means 30 and the three-dimensional printer; It includes, the light providing means 10 is provided as a projector having a laser light source.
  • the light providing means 10 serves to irradiate the laser light source to the resin (R), the laser diode 31, the lens 32, the homogenizer (33, Homogenizer), The pattern forming unit 34, the projection lens 35 and the auxiliary lens 37 are included.
  • the laser diode 31 may be adopted as an LED emitting a laser light source in a configuration that serves to generate a laser light source.
  • the lens 32 serves to enlarge or reduce the light generated by the laser diode 31, and the homogenizer 33 serves to homogenize the light enlarged or reduced through the lens 32.
  • the pattern forming unit 34 serves to image and transmit the homogenized light through the homogenizer 33 in a molding pattern form (I, imaging pattern).
  • the pattern forming unit 34 may be a digital micromirror device (DMD) device or an LCD. Can be prepared.
  • the projection lens 35 serves to irradiate the build plate 20 with the light source imaged by the pattern forming unit 34.
  • At least one auxiliary lens 37 may be installed between the lens 32 and the homogenizer 33 or between the homogenizer 33 and the pattern forming unit 34 to reduce or enlarge the light source.
  • the auxiliary lens 37 is provided between the homogenizer 33 and the pattern forming unit 34, but is not limited thereto.
  • the three-dimensional printer according to the present invention is provided so as to move left and right on the build plate 20, the build plate 20 to the resin (R) supplied from the resin storage unit 10 to the build plate 20 It may further include a coating unit 40 for applying a predetermined thickness on the front surface.
  • the coating unit 40 as shown in Figure 3, includes a ball bush 42 coupled to the upper, lower, based on the plane, the ball bush 42 is formed on the top and bottom of the build plate 20 It may be provided to move left and right on the build plate 20 along the guide 21, it may be provided in the form of a cylindrical bar or wiper.
  • the coating unit 40 may be adjusted according to the predetermined interval (1 micron to 100 microns, the resin material and the shape of the molding) at the top of the build plate 20 when the resin is supplied from the resin ten (10) It is to serve to apply the resin (R) to a certain thickness on the build plate 20 by moving to the left, right while floating.
  • the printing operation according to the above-described configuration is performed in the order of resin supply-> resin thickness control (coating)-> curing, and this operation is repeated (refer to FIGS. m) printing is implemented.
  • the lower portion of the resin storage unit 10 may be provided with a magnetic heating stirrer 50 for temperature control and stirring of the resin (R) accommodated in the resin storage unit 10.
  • the magnetic heating stirrer 50 implements temperature control, maintenance and mixing of the resin by performing heating and stirring using a magnetic releasing magnetic force, and is provided to be controlled by a control unit to be described later, whereby the resin is liquid When provided with, it is possible to improve the quality of the moldings by preventing the precipitation of the pigment to implement a uniform color, by maintaining the temperature of the resin to be optimized for curing.
  • a recovery unit 60 for recovering uncured resin on the build plate 20 may be installed below the build plate 20.
  • the bellows shape means a form that can be folded and unfolded, and is configured to correspond to the displacement of the build plate 20, as shown in FIG. 1, to be applied to a part of the body part 62 and the recovery pipe part 64. Can be.
  • the recovery pipe unit 64 may be implemented in a circulation structure in which the recovered resin R is connected to the resin storage unit 10 so as to be resupplyed to the resin storage unit 10.
  • One or more filters 66 may be installed between the resin storage parts 10 to filter some of the cured resin R.
  • the movement of the resin R to the resin storage unit 10 through the recovery pipe unit 64 may be implemented by a motor (not shown) and a pump (not shown), and the liquid resin through the filter 66. Stable recycling of the resin (R) can be expected by filtering out some of the cured solidified resin.
  • the build plate 20 is formed with at least one resin recovery hole 22 through which the resin (R) is discharged, preferably may be formed on both sides of the build plate 20, In order to smoothly discharge the resin into the resin recovery hole 22, the build plate 20 may be formed to have a predetermined angle (about 0.5 to 3 degrees) toward both sides from the center.
  • the filter is configured to resupply the resin storage unit 10 to implement a circulation structure.
  • control unit is formed separately from the molding (m) to be printed through the curing of the resin (R), the molding auxiliary (laminated to correspond to the stacking height of the molding (m) in the outer edge portion of the molding (m) ( ma) may be configured to control the light providing means 30 to be printed (see FIGS. 5 to 6).
  • Molding aid (ma) serves to serve the purpose of preventing the outflow of the supplied resin (R) and the reference height that the coating unit 40 operates, in this case, the resin recovery hole 22 is a build plate Formed between the molding assistant (ma) and the molding (m) on the (20) is to be able to recover the resin remaining between the molding assistant (ma) and the molding (m).
  • efficient and rapid sculpture printing can be realized by curing a photocurable resin forming a sculpture through a laser light source.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

La présente invention concerne une imprimante tridimensionnelle comprenant : une unité de stockage de résine, pour stocker une résine photodurcissable ; une plaque de construction, qui est revêtue d'une résine photodurcissable alimentée par l'unité de stockage de résine, est disposée de façon à être mobile vers le haut et vers le bas et fournit un support de sorte que la résine durcie peut être empilée ; un moyen fournissant de la lumière qui est agencé dans la partie supérieure de la plaque de construction et qui irradie de la lumière conformément à un motif de modélisation sur la plaque de construction ; et une unité de commande pour commander les fonctionnements de l'unité de stockage de résine, de la plaque de construction et du moyen de fourniture de lumière, le moyen de fourniture de la lumière étant réalisé sous forme d'un projecteur présentant une source lumineuse laser. Ainsi, un modèle peut être imprimé de manière efficace et rapide par durcissement de la résine photodurcissable, qui forme un modèle, grâce à une source lumineuse laser. En outre, un photodurcissement efficace peut être mis en oeuvre grâce au maintien uniforme de l'épaisseur de la résine photodurcissable ; la qualité d'impression peut être améliorée grâce au maintien uniforme de la température de la résine photodurcissable ; et un modèle présentant une couleur uniforme peut être imprimé grâce au fait d'empêcher la sédimentation du pigment par agitation de la résine photodurcissable. En outre, des économies dans la production de matériaux imprimés peuvent être attendues par la mise en oeuvre de la récupération et de la mise en circulation de la résine photodurcissable.
PCT/KR2014/009821 2014-10-20 2014-10-20 Imprimante tridimensionnelle WO2016063996A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/KR2014/009821 WO2016063996A1 (fr) 2014-10-20 2014-10-20 Imprimante tridimensionnelle

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Application Number Priority Date Filing Date Title
PCT/KR2014/009821 WO2016063996A1 (fr) 2014-10-20 2014-10-20 Imprimante tridimensionnelle

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WO2016063996A1 true WO2016063996A1 (fr) 2016-04-28

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017198057A1 (fr) * 2016-05-19 2017-11-23 江苏锐辰光电技术有限公司 Nouvelle imprimante 3d laser
CN108454102A (zh) * 2018-04-04 2018-08-28 内蒙古机电职业技术学院 一种激光3d打印装置
WO2020002776A1 (fr) * 2018-06-28 2020-01-02 Planmeca Oy Appareil de stéréolithographie équipé d'un mécanisme de collecte de résine et procédé de fonctionnement dudit appareil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09314679A (ja) * 1996-05-29 1997-12-09 Japan Synthetic Rubber Co Ltd 立体形状物の光造形装置
JP2001334583A (ja) * 2000-05-25 2001-12-04 Minolta Co Ltd 三次元造形装置
US20050259785A1 (en) * 2000-09-27 2005-11-24 Xiang Zhang Dynamic mask projection stereo micro lithography
JP2005335391A (ja) * 2004-05-28 2005-12-08 Three D Syst Inc レーザー焼結における片側双方向供給
US20120228802A1 (en) * 2007-07-20 2012-09-13 Shyi-Herng Kan Device and method for focusing a beam of light with reduced focal plane distortion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09314679A (ja) * 1996-05-29 1997-12-09 Japan Synthetic Rubber Co Ltd 立体形状物の光造形装置
JP2001334583A (ja) * 2000-05-25 2001-12-04 Minolta Co Ltd 三次元造形装置
US20050259785A1 (en) * 2000-09-27 2005-11-24 Xiang Zhang Dynamic mask projection stereo micro lithography
JP2005335391A (ja) * 2004-05-28 2005-12-08 Three D Syst Inc レーザー焼結における片側双方向供給
US20120228802A1 (en) * 2007-07-20 2012-09-13 Shyi-Herng Kan Device and method for focusing a beam of light with reduced focal plane distortion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017198057A1 (fr) * 2016-05-19 2017-11-23 江苏锐辰光电技术有限公司 Nouvelle imprimante 3d laser
CN108454102A (zh) * 2018-04-04 2018-08-28 内蒙古机电职业技术学院 一种激光3d打印装置
WO2020002776A1 (fr) * 2018-06-28 2020-01-02 Planmeca Oy Appareil de stéréolithographie équipé d'un mécanisme de collecte de résine et procédé de fonctionnement dudit appareil

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